[UEB Maths] UEB special modes

[Phippen, Stephen]

To: UEB Maths Committee
From: Stephen Phippen
Date: Monday 13 June 2005

If we were at some stage interested in introducing a compressed mode, an =
alternative to the one outlined by Joe which focuses on the arithmetical =
signs and brackets, would be one which instead has a compact form for =
subscript numbers (especially useful for chemistry, but also for maths). =
I'm sure we must have mentioned this before in Committee 2 (and rejected =
it), but perhaps only within the context of normal UEB - I've certainly =
thought it.

You just use lower letters to represent subscript numbers within this =
mode, e.g. x sub 1 is just x dot 2, and x sub 1 y sub 2 is x dot 2 y =
dots 23. But for this we would have to switch the superscript and =
subscript indicators from lower e and lower i. An available sign to =
switch the subscript sign to is the recently discussed dots 16 (which by =
chance is the current BAUK subscript sign), and is "similar" to lower e. =
It would be nice to similarly switch the superscript sign to dots 34, =
but this is assigned in UEB as the simple numeric fraction line. The =
traditional superscript sign for BAUK (and elsewhere) is the again =
recently discussed dots 346, but in UEB we have it as the radical close =
sign. (Can this easily be altered?)

Although I am not necessarily proposing this (unless others showed =
interest), I thought it would be best to flag it now before it is too =
late. If we want to keep lower letters available as a series for future =
use in a special mode, we should consider changing the current UEB =
assignments for superscript and subscript signs; certainly dots 16 and =
possibly dots 346 spring to my mind.

I note also that lower g, currently the prime sign in UEB, would also =
best be reassigned, as the prime sign would be used in these same =
technical contexts.

Of course, it is not my intention here to open up old discussions.




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